1 /* SPDX-License-Identifier: GPL-2.0 */ 2 3 #ifndef _BLK_IOPRIO_H_ 4 #define _BLK_IOPRIO_H_ 5 6 #include <linux/kconfig.h> 7 8 struct request_queue; 9 struct bio; 10 11 #ifdef CONFIG_BLK_CGROUP_IOPRIO 12 int blk_ioprio_init(struct request_queue *q); 13 void blk_ioprio_exit(struct request_queue *q); 14 void blkcg_set_ioprio(struct bio *bio); 15 #else 16 static inline int blk_ioprio_init(struct request_queue *q) 17 { 18 return 0; 19 } 20 static inline void blk_ioprio_exit(struct request_queue *q) 21 { 22 } 23 static inline void blkcg_set_ioprio(struct bio *bio) 24 { 25 } 26 #endif 27 28 #endif /* _BLK_IOPRIO_H_ */ 29